Well, I've dyed them once w/chemical dye, now that I think of it. It was probably about 2 months after I went dready. I had totally forgotten!
A friend of mine dyes wool yarn and does silk painting and has every color of really good dyes I could ever want to experiment with, lol. I may do a dread here and there a neato color, but nah, not all of them for sure. I think for now I'll just use the ash brown on some of them, and my bangs and see what it looks like. If I don't like it I can always run get another bottle and finish them off.